| Synonyms | Length | Vowels | Syllables | |
|---|---|---|---|---|
| Perdurability | 13 | 8 | 5 | 6 |
| Perennation | 11 | 6 | 5 | 4 |
| Permanence | 10 | 6 | 4 | 3 |
| Permanency | 10 | 7 | 3 | 4 |
| Perpetualness | 13 | 8 | 5 | 5 |
| Perpetuation | 12 | 6 | 6 | 5 |
| Perpetuity | 10 | 6 | 4 | 4 |
| Persistence | 11 | 7 | 4 | 3 |
| Persistency | 11 | 8 | 3 | 4 |
| Pertinaciousness | 16 | 9 | 7 | 5 |
| Pertinacity | 11 | 7 | 4 | 5 |
| Pigheadedness | 13 | 8 | 5 | 4 |
| Pinch | 5 | 4 | 1 | 1 |
| Plodding | 8 | 6 | 2 | 2 |
| Pluck | 5 | 4 | 1 | 1 |
| Plugging | 8 | 6 | 2 | 2 |
| Preoccupancy | 12 | 8 | 4 | 4 |
| Preoccupation | 13 | 7 | 6 | 4 |
| Press | 5 | 4 | 1 | 1 |
| Pressing | 8 | 6 | 2 | 2 |
| Pressingness | 12 | 9 | 3 | 3 |
| Pressure | 8 | 5 | 3 | 2 |
| Procession | 10 | 6 | 4 | 3 |
| Progress | 8 | 6 | 2 | 2 |
| Progression | 11 | 7 | 4 | 3 |
| Prolongation | 12 | 7 | 5 | 4 |
| Prosecution | 11 | 6 | 5 | 4 |
| Protraction | 11 | 7 | 4 | 3 |
| Purpose | 7 | 4 | 3 | 2 |
| Purposefulness | 14 | 9 | 5 | 5 |
| Pursuance | 9 | 5 | 4 | 3 |
| Quiescence | 10 | 5 | 5 | 3 |
| Quiescency | 10 | 6 | 4 | 4 |
| Relentlessness | 14 | 10 | 4 | 4 |
| Repeating | 9 | 5 | 4 | 3 |

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